The PentaFlow Lift Cylinder has a mechanically operated internal valve. This valve is located in the machined cartridge at the base of the chromed piston. During the lifting cycle, the internal valve is closed. When the piston reaches full extension, a horizontally positioned actuator opens the internal valve. Once the valve opens, the hydraulic oil is ported (directed) out of a fitting at the top of the lift cylinder. It then goes through a connecting hydraulic hose and back to the reservoir.
Contact a Pentalift Sales Representative for more information.